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Firewalls and Security presentation

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These slides are from a presentation Mark Notarus gave on March 9, 1999 about the strengths, weaknesses, and uses of firewalls in network security.

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Table of Contents

Firewalls and Security

Firewalls and Security

Why security?

Denial of service

Theft of Service

Packet Sniffing

Firewalls

Firewalling your Network

Types of firewalls

Network Address Translation

Proxy Firewall

Stateful Firewalls

Access Policy

Example Access Policies

Firewall Pros

Firewall cons

Security policy construction

Security policy dangers

Administrative overhead

Administrative policy?

Firewall speed issues

The Firewall Fallacy

An example

Secured network

Is this secure?

Why not a Firewall?

Administrative overhead

Security

Support

So what can you do?

 Author: Mark Notarus

Email: notarus@uiuc.edu

  August 26, 2003 CITES welcomes comments about our services and comments about our web site.
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